program nguyen_to;
uses crt;
var n,i,d,j: integer;
Begin
clrscr;
write('Nhap n: '); readln(n);
write('Cac so nguyen to tu 2 den ',n,': ');
for i:=2 to n do
begin
d:=0;
for j:=1 to i do
if i mod j=0 then d:=d+1;
if d=2 then write(i,' ');
end;
readln
End.